Approval workflow for cancelling the payable invoice

Summary:

Approval workflow for cancelling the payable invoice

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I'm trying to find the ways to enable approval for cancelling the payable invoice and three solutions came up with are stated below. Is there any other ideas for enabling approval for cancellation of the payable invoice?

・Cancelling lines>going for an approval

・Adding a negative amount in lines >going for an approval

・Creating a credit memo>going for an approval

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